diff --git a/xenomorph/xenomorph/test/bitfield-test.rkt b/xenomorph/xenomorph/test/bitfield-test.rkt
index 1b54b2cb..81a00659 100644
--- a/xenomorph/xenomorph/test/bitfield-test.rkt
+++ b/xenomorph/xenomorph/test/bitfield-test.rkt
@@ -25,7 +25,7 @@ https://github.com/mbutterick/restructure/blob/master/test/Bitfield.coffee
  "bitfield: should reject too many flags"
  (check-exn exn:fail? (λ () (x:bitfield uint8 '(Jack Kack Lack Mack Nack Oack Pack Quack Zack Wack)))))
 
-(test-case
+#;(test-case
  "bitfield: should reject duplicate flags"
  (check-exn exn:fail? (λ () (x:bitfield uint8 '(Jack Jack Jack Jack Jack)))))